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US7980601B2 - Coupler for corrugated pipe - Google Patents

Coupler for corrugated pipe Download PDF

Info

Publication number
US7980601B2
US7980601B2 US12/385,129 US38512909A US7980601B2 US 7980601 B2 US7980601 B2 US 7980601B2 US 38512909 A US38512909 A US 38512909A US 7980601 B2 US7980601 B2 US 7980601B2
Authority
US
United States
Prior art keywords
hole
coupling base
corrugated pipe
diameter
coupler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US12/385,129
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English (en)
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US20100209178A1 (en
Inventor
Seung-Il Oh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kofulso Co Ltd
Original Assignee
Kofulso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kofulso Co Ltd filed Critical Kofulso Co Ltd
Assigned to KOFULSO CO., LTD. reassignment KOFULSO CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OH, SEUNG-IL
Publication of US20100209178A1 publication Critical patent/US20100209178A1/en
Application granted granted Critical
Publication of US7980601B2 publication Critical patent/US7980601B2/en
Active legal-status Critical Current
Adjusted expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
    • F16L25/0036—Joints for corrugated pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • F16L19/08—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe
    • F16L19/10—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe the profile of the ring being altered
    • F16L19/12—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe the profile of the ring being altered with additional sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
    • F16L25/0036—Joints for corrugated pipes
    • F16L25/0054—Joints for corrugated pipes with specially shaped sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S285/00—Pipe joints or couplings
    • Y10S285/903—Corrugated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/16—Joints and connections with adjunctive protector, broken parts retainer, repair, assembly or disassembly feature
    • Y10T403/1616—Position or guide means
    • Y10T403/1624—Related to joint component

Definitions

  • the present invention relates generally to couplers for flexible corrugated pipes having structures in which peak portions and valley portions are repeatedly formed and, more particularly, to a coupler for corrugated pipes which is constructed such that a corrugated pipe can be easily coupled to the coupler only by inserting the corrugated pipe into the coupler and tightening a cap nut over a coupling base.
  • the sleeve has an opening in the outer surface thereof, so that when the corrugated pipe is coupled to the sleeve, the protrusion of the sleeve is expanded in diameter by a peak portion of the corrugated pipe and is then inserted into a corresponding valley portion of the corrugated pipe.
  • a sleeve comprises a pair of semicircular members.
  • the above structure of this embodiment is to achieve the purpose of being able to elastically insert a protrusion of the sleeve into a corresponding valley portion of the corrugated pipe.
  • the cap nut is separated from the coupling base, and only the cap nut is fitted over the corrugated pipe. Thereafter, the sleeve is coupled to the corrugated pipe and inserted into the cap nut. Subsequently, the cap nut is threaded over the coupling base, thus completing the coupling of the corrugated pipe to the coupler.
  • the many processes make the coupling work complex.
  • the coupling base, the cap nut, and the sleeve are individually handled, there is the possibility of loss.
  • an object of the present invention is to provide a coupler for a corrugated pipe in which several elements thereof can be handled as a single assembly body, and which is constructed such that the corrugated pipe can be coupled to the coupler only by tightening a cap nut over a coupling base after the corrugated pipe is inserted into the coupler which has been assembled into the single body.
  • the present invention provides a coupler for a corrugated pipe, including: a coupling base having an external thread on an outer surface thereof, the coupling base including a through hole having a diameter less than a diameter of a peak portion of a corrugated pipe, a compression hole having a diameter greater than the diameter of the peak portion of the corrugated pipe, and an insert hole having a diameter greater than the diameter of the compression hole, wherein the through hole, the compression hole and the insert hole are continuously formed through the coupling base; a guide member inserted into the insert hole of the coupling base, with an inclined portion on one end of the guide member; a compression ring having an opening at a predetermined position such that the compression ring is elastically expanded or contracted in diameter, the compression ring fitted into the insert hole of the coupling base; a force-fitting member fitted into the insert hole of the coupling base, the force-fitting member having on one end thereof a pressing portion having an outer diameter corresponding to the diameter of the compression hole; a
  • FIG. 1 is an exploded perspective view illustrating a coupler for corrugated pipes, according to an embodiment of the present invention
  • FIG. 2 is a partially broken perspective view showing the coupling of a corrugated pipe to the coupler according to the present invention
  • FIG. 3 is a sectional view of the coupler of the present invention.
  • FIGS. 4A through 4C are views showing a process of coupling the corrugated pipe to the coupler.
  • FIG. 1 is an exploded perspective view illustrating a coupler for corrugated pipes, according to the embodiment of the present invention.
  • FIGS. 2 and 3 are views showing the coupling of the coupler.
  • the coupler according to the present invention includes a coupling base 10 which has a threaded coupling structure, a cap nut 60 , a guide member 20 which is inserted into the coupling base 10 , a compression ring 30 , a force-fitting member 40 and a sleeve 50 .
  • a through hole 11 which has a diameter less than that of a peak portion 71 of a corrugated pipe 70 , a compression hole 12 which has a diameter greater than that of the peak portion 71 of the corrugated pipe 70 , and an insert hole 13 which has a diameter greater than that of the compression hole 12 are continuously formed in the coupling base 10 in the axial direction.
  • An external thread 14 is formed around the circumferential outer surface of the coupling base 10 .
  • the guide member 20 has an inclined portion on one end thereof.
  • the guide member 20 is fitted into the insert hole 13 such that the inclined portion faces the direction in which the corrugated pipe 70 is inserted into the coupler.
  • the guide member 20 may be integrally formed in the coupling base 10 by forming a part having an inclined portion in the insert hole 13 of the coupling base 10 .
  • the compression ring 30 has an opening 31 at a predetermined position such that it is elastically expanded or contracted in diameter. When the compression ring 30 is fitted into the guide member 20 placed in the insert hole 13 , the compression ring 30 moves along the inclined portion of the guide member 20 .
  • the cross-section of the compression ring 30 may have a circular shape or, alternatively, it may have various shapes including triangular, rectangular and pentagonal shapes, as long as the compression ring 30 can appropriately compress the peak portion 71 of the corrugated pipe 70 .
  • the force-fitting member 40 is fitted into the insert hole 13 and has on a corresponding one end thereof a pressing portion 41 which has an outer diameter corresponding to the inner diameter of the compression hole 12 .
  • a packing 42 may be fitted over the circumferential outer surface of the force-fitting member 40 .
  • the sleeve 50 is inserted into the insert hole 13 of the coupling base 10 and includes a protruding part 52 which extends outwards from a stop portion 51 formed opposite the insert hole 13 .
  • a passing hole 53 which has a diameter corresponding to the diameter of the peak portion 71 of the corrugated pipe 70 is formed through the sleeve 50 .
  • a seating depression 54 is formed in the passing hole 53 of the sleeve 50 so that a coating shell 73 of the corrugated pipe 70 is seated into the seating depression 54 .
  • the corrugated pipe 70 is coupled to the coupler such that a portion of the corrugated pipe 70 from which the coating shell 73 is removed is prevented from being exposed to outside of the coupler.
  • a packing 55 may be provided in the passing hole 53 of the sleeve 50 .
  • the force-fitting member 40 may be integrated with the sleeve 50 .
  • the cap nut 60 has a threaded hole 61 which engages with the external thread 14 of the coupling base 10 , and a coupling hole 62 which is fitted over the protruding part 52 of the sleeve 50 .
  • the guide member 20 , the compression ring 30 , the force-fitting member 40 and the sleeve 50 are sequentially inserted into the insert hole 13 of the coupling base 10 .
  • the cap nut 60 is threaded over the coupling base 10 by engaging the external thread 14 of the coupling base 10 with the threaded hole 61 of the cap nut 60 to a degree at which the position of the compression ring 30 is limited by the inclined portion of the guide member 20 and the pressing portion 41 of the force-fitting member 40 .
  • FIGS. 4A through 4C are views showing a process of coupling the corrugated pipe to the coupler of the present invention.
  • the corrugated pipe 70 is inserted into the coupling hole 62 of the cap nut 60 . Then, because the inner diameter of the through hole 11 of the coupling base 10 is less than the outer diameter of the peak portion 71 of the corrugated pipe 70 , the end of the corrugated pipe 70 is disposed at the boundary between the through hole 11 and the compression hole 12 of the coupling base 10 (see, FIG. 4A ).
  • the cap nut 60 is tightened over the coupling base 10 .
  • the sleeve 50 pushes the force-fitting member 40
  • the pressing portion 41 of the force-fitting member 40 pushes the compression ring 30 .
  • the compression ring 30 moves along the inclined portion 21 of the guide member 20 , and the opening 31 thereof becomes closed.
  • the end of the corrugated pipe 70 that is compressed by the compression ring 30 forms a structure of sealing the corrugated pipe 70 to prevent the contents from leaking out between the coupler and the corrugated pipe 70 .
  • the compression ring 30 which is fitted into the valley portion 71 serves to fasten the corrugated pipe 70 to the coupler.
  • the cap nut 60 is loosened from the coupling base 10 . Thereafter, the corrugated pipe 70 is pulled in the direction opposite the direction in which it was inserted into the coupler. Then, the compression ring 30 is moved from the compression hole 12 to the insert hole 13 and, simultaneously, it is expanded in diameter, thus allowing the removal of the corrugated pipe 70 from the coupler.
  • the corrugated pipe 70 can be easily coupled to the coupler only by inserting the corrugated pipe 70 into the coupling base 10 and tightening the cap nut 60 . Therefore, the present invention is advantageous in that convenience of the pipe coupling is ensured.
  • a corrugated pipe is inserted into a compression hole of the coupling base through a coupling hole of the cap nut. Thereafter, the cap nut is tightened over the coupling base. Then, a compression ring enters a corresponding valley portion of the corrugated pipe and compresses a corresponding corrugated portion of the pipe, thus completing the coupling of the corrugated pipe to the coupler. Therefore, the pipe coupling can be easily conducted. Furthermore, several elements of the coupler can be handled as a single assembly body, thus being more convenient for a user.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)
US12/385,129 2009-02-16 2009-03-31 Coupler for corrugated pipe Active 2029-09-25 US7980601B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0012549 2009-02-16
KR1020090012549A KR101052730B1 (ko) 2009-02-16 2009-02-16 주름 파이프용 연결 장치

Publications (2)

Publication Number Publication Date
US20100209178A1 US20100209178A1 (en) 2010-08-19
US7980601B2 true US7980601B2 (en) 2011-07-19

Family

ID=42560040

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/385,129 Active 2029-09-25 US7980601B2 (en) 2009-02-16 2009-03-31 Coupler for corrugated pipe

Country Status (2)

Country Link
US (1) US7980601B2 (ko)
KR (1) KR101052730B1 (ko)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140306448A1 (en) * 2013-04-11 2014-10-16 Omega Flex, Inc. Fitting For Tubing Containment System
US9127790B2 (en) 2012-11-23 2015-09-08 Kofulso Co., Ltd. Coupler for corrugated pipe
US20160076683A1 (en) * 2012-10-12 2016-03-17 Lorax Systems, Inc. Coupling Assembly for a Pipe and Valve Assembly Comprising the Same
US20170159970A1 (en) * 2015-12-03 2017-06-08 Heateflex Corporation In-line heater
US10443728B1 (en) 2015-05-06 2019-10-15 Orbit Irrigation Products, Llc Enhanced seal
US10487972B1 (en) * 2015-05-06 2019-11-26 Orbit Irrigation Products, Llc Hose mending device and method
US20210172549A1 (en) * 2018-07-25 2021-06-10 Jonathon Ivett Connector assembly

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Publication number Priority date Publication date Assignee Title
GB2484480A (en) * 2010-10-11 2012-04-18 Jonathon Lachlan Ivett Corrugated pipe connector
KR200473498Y1 (ko) * 2013-11-07 2014-07-09 박진호 플라스틱관 연결 이음쇠
GB201319795D0 (en) * 2013-11-08 2013-12-25 Eden Ltd Pipe Connector
KR101677529B1 (ko) * 2016-05-13 2016-11-18 영진산업 주식회사 주름관용 연결부재
WO2018125156A1 (en) * 2016-12-29 2018-07-05 Intel Corporation Apparatus and system for flexible fluid piping and connector
WO2019065762A1 (ja) * 2017-09-29 2019-04-04 日立金属株式会社 管継手
US11306850B2 (en) 2017-10-24 2022-04-19 Dong-A Flexible Metal Tubes Co., Ltd. Connecting device for corrugated pipe and coupling method thereof
WO2019083158A1 (ko) * 2017-10-24 2019-05-02 동아금속주름관(주) 주름관 연결 장치 및 그 결합 방법
WO2019143497A1 (en) * 2018-01-19 2019-07-25 Omega Flex, Inc. Corrugated medical tubing system having fitting with anti-tamper sleeve
KR200496826Y1 (ko) * 2021-07-15 2023-05-04 정문식 원형 파형관용 관로구 연결장치
USD1022145S1 (en) * 2021-10-14 2024-04-09 Ebbe America, Lc Seal member
USD1032795S1 (en) * 2022-03-03 2024-06-25 Advanced Drainage Systems, Inc. Reducing plate

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US3693664A (en) 1970-10-15 1972-09-26 Hancock Brick & Tile Co Modular cellular conduit assembly
US3699684A (en) 1970-06-30 1972-10-24 Advanced Drainage Syst Corrugated drainage tubes and fittings
US3747960A (en) 1972-05-15 1973-07-24 Thomas & Betts Corp Coupling
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467413A (en) 1963-03-25 1969-09-16 Lorraine Escaut Sa Triple-sealing pipe joint
US3699684A (en) 1970-06-30 1972-10-24 Advanced Drainage Syst Corrugated drainage tubes and fittings
US3669474A (en) 1970-08-26 1972-06-13 Richard M Bode Coupled joint of axially aligned elongated members
US3693664A (en) 1970-10-15 1972-09-26 Hancock Brick & Tile Co Modular cellular conduit assembly
US3781041A (en) 1970-10-31 1973-12-25 Petzetakis Aristovoulos George Pipe and tube coupling
US3785682A (en) 1970-11-17 1974-01-15 Advanced Drainage Syst Inc Flexible fittings for corrugated tubing
US3953057A (en) 1971-09-14 1976-04-27 Aristovoulos George Petzetakis Pipe and tube coupling
US3958719A (en) 1971-12-16 1976-05-25 Ward Dennis H Relating to containers
US4149740A (en) 1971-12-30 1979-04-17 W. E. Hall Co. Pipe coupling device
US3747960A (en) 1972-05-15 1973-07-24 Thomas & Betts Corp Coupling
US4037626A (en) 1975-09-15 1977-07-26 Standard Oil Company (Indiana) High strength composite pipe structure having leakproof joints
US4202568A (en) 1975-09-25 1980-05-13 Ab Gustavsberg Tube joint
US4082327A (en) 1976-08-20 1978-04-04 Hancor, Inc. Connecting joint for corrugated plastic tubing
US4141576A (en) 1977-08-23 1979-02-27 Lupke Manfred Arno Alfred Heat shrinkable sleeve for coupling pipe sections
US4304415A (en) 1978-12-18 1981-12-08 Woco Franz-Josef Wolf & Co. Packing ring for ribbed conduits
US4247136A (en) 1978-12-22 1981-01-27 Hancor, Inc. Internal coupling structure and joint for pipe or tubing
US4368894A (en) 1980-05-22 1983-01-18 Rieber & Son Reinforced sealing rings for pipe joints
US4437691A (en) 1981-06-01 1984-03-20 Laney Ralph M Connector for corrugated tubing
US4542922A (en) 1982-02-05 1985-09-24 Agro Ag. Fitting for connecting circumferentially ribbed insulating tubes of plastic
US4443031A (en) 1982-11-04 1984-04-17 Thyssen-Bornemisza Inc. Connector fitting for connecting corrugated conduit sections
US4606564A (en) * 1982-11-17 1986-08-19 Hisaharu Kurachi Device for coupling hose or the like
US4591193A (en) 1982-12-11 1986-05-27 Oltmanns Ziegel Und Kunststoffe Gmbh Line pipe of synthetic material especially for waste water
US4702502A (en) 1985-08-06 1987-10-27 Contech Construction Products Inc. Gasket for making joints in corrugated plastic pipe
US4779651A (en) 1986-02-05 1988-10-25 Wilhelm Hegler Plastic corrugated tube with integrally molded sleeve coupler
US4801158A (en) * 1986-10-31 1989-01-31 Kitz Corporation Pipe joint
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Cited By (11)

* Cited by examiner, † Cited by third party
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US20160076683A1 (en) * 2012-10-12 2016-03-17 Lorax Systems, Inc. Coupling Assembly for a Pipe and Valve Assembly Comprising the Same
US9127790B2 (en) 2012-11-23 2015-09-08 Kofulso Co., Ltd. Coupler for corrugated pipe
US20140306448A1 (en) * 2013-04-11 2014-10-16 Omega Flex, Inc. Fitting For Tubing Containment System
US9140392B2 (en) * 2013-04-11 2015-09-22 Omega Flex, Inc. Fitting for tubing containment system
US10443728B1 (en) 2015-05-06 2019-10-15 Orbit Irrigation Products, Llc Enhanced seal
US10487972B1 (en) * 2015-05-06 2019-11-26 Orbit Irrigation Products, Llc Hose mending device and method
US11002393B1 (en) 2015-05-06 2021-05-11 Orbit Irrigation Products, Llc Enhanced seal
US20170159970A1 (en) * 2015-12-03 2017-06-08 Heateflex Corporation In-line heater
US10139133B2 (en) * 2015-12-03 2018-11-27 Heateflex Corporation In-line heater
US20210172549A1 (en) * 2018-07-25 2021-06-10 Jonathon Ivett Connector assembly
US11680666B2 (en) * 2018-07-25 2023-06-20 FlexiGas UKC Ltd Connector assembly

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